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More than one battery...

Old 06-19-2004, 04:51 PM
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RG501
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Default More than one battery...

What would happen if i connected another battery to my boat that already holds one? Would it make it faster? or give it a longer run time?

thanks.
Old 06-19-2004, 08:42 PM
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Umi_Ryuzuki
 
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Default RE: More than one battery...

If you connect the batteries in series, the boat will go faster, or burn something out.

If you connect the batteries in Parallel, then you will get longer running times.

Old 06-20-2004, 08:38 AM
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LtDoc
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Default RE: More than one battery...

As 'Umi' said, it just depends on how you connect the 'extra' battery.
If it's connected in series it will raise the voltage supplied to the system. That means that if the components of the system aren't rated for the higher voltage, something will 'give'. Higher voltage means higher speed, in general.
If you connect the 'extra' battery in parallel, and if the 'extra' battery is the same voltage as the original, the voltage will stay the same, but the amount of stored current is increase. That increased current capacity means a longer running time.
Another consideration is that if the two batteries are not the same voltage and current capacity, the 'weaker' of the two will be put under more 'strain' (has to work harder, so will be more likely to have problems).
- 'Doc
Old 06-20-2004, 01:11 PM
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RG501
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Default RE: More than one battery...

how to i hook a battery in parallel? im kinda new to rc boating. sorry all the questions.
Old 06-20-2004, 02:50 PM
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pompebled
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Default RE: More than one battery...

Use a Y-harness, so the + and - of both packs are connected to the esc.

Only do this with two identical packs, in brand, capacity (mAh), age and charging state.

The questions are not a problem, better ask too much and too often, than burn out your boat.

Regards, Jan.
Old 06-22-2004, 03:23 PM
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Default RE: More than one battery...

Keep in mind too that batteries are very heavy and will cause your boat to weigh more and sit lower in the water increasing drag thereby reducing speed....unless you can still get it up on plane (this will be harder to do at an increased weight) and maybe it will be a speed increase if you have enough increase of an voltage/revolutions on the prop. Like it has been said already...you need to be very careful about a voltage increase and not fry your motor or other parts.


If this is a not a speed boat and you want more running time,,,then hook the batteries in "parallel" as stated above. What that means is the positive sides are hooked together and the negative sides are hooked together with a positive and negative lead going to the motor. This will not change the overall output voltage, rather increase the duration of the available voltage.

The other way is in "series" with the batteries hooked up one end to the other (positive hooked to negative and so on in series). This will add the voltage of one battery to the next so that 2 batteries of 1 1/2 volts will add up to 3 volts and 3 will add up to 4 1/2 volts and so on.

Did I lose you?[&:]

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